Improvement in sash-holders



A. H. CHASE.

Improvement in Sash-Ho'lders.4

No; l3(),622, 1 l Patented Aug 20;1YB72.

mmm wd 2@ ilivrrgnn STATES PATENT OTFrcjn ALFRED CHASE, OF LOWELL, MASSACHUSETTS.

IMPRCVEMENT IN SASH-HOLDERS.

S pecitication forming part of Letters Batent No. H30,622, dated August 20, 1872..

Specification describing certain Improvements in WindowSash Stopsinvented by ALFRED H. CHASE, of Lowell, in the county of Middlesex and Commonwealth of Massachusetts.

My invention consists in the combination of two levers, terminating in friction-surfaces and turning upon pivots, with a slide and a spring, which spring, acting through said slide, turns said levers so as to press their outer ends against the window-frame, the outer arms of said levers forming the angles with the sides of the'window-frame, hereinafter described, the whole constituting a window-sash stop.

The accompanying drawing represents my invention.

Figure l is a general view of my invention attached to a sash which slides in a frame, only the lower partof the sash and frame being shown. Fig. 2 is a section of the lower rail of the sash and my invention through the stud J and the bolt K, showing the spring. Fig. 3 is an end view of the foot, showing the rubber. Fig. 4 is a side .view ofthe same, showing the rubber. Fig. 5 is a side view of the same, showing the Toughened end.

A is a window-sash. B is a window-frame. C C are two levers turning upon th'e pivots D D in the pivot-plates E E, the latter being securely fastened to the lower rail of the sash A. FF are the outer ends or feet of the levers C C, roughened on the ends, as shown in Fig. 5, or provided with pieces of rubber inserted in holes drilled in the ends, as shown in Figs. 3 and 4, to increase the friction of the feet upon the window-frame B. G is the slide, horizontally grooved on its inner surface, as shown in Fig. 2, to receive the inner ends of the levers C (l. H is a plate slotted vertically, on which the slide G moves. The plate H is securely fastened to the lower rail of the sash, and its upper end is bent over forward, as in Figs. l and 2, to form the handle I. J is a stud projecting from the slide G in Figs. l and 2. K is a bolt which passes from the slide G through the slot in the plate H to a small rectangular plate which moves in a vertical groove on the inner side of the plate H. The object of the bolt K is to keep the slide G against the plate H, not so closely, however, as to prevent the slide G from moving freely over the plate H.

If the bolt K is squared where it passes through the slotted plate H, (from G, the slide, to which it is rigidly attached,) and headed77 on the inner side of the plate H, the small rectangular plate on the inner side of the plate H may be dispensed with and one end of the spring L attached to the bolt K. L in Fig. 2 is a spiral spring which draws down the slide G. This spring L is attached at one end to the small rectangular plate which slides on the inner surface of the slotted plate H, and at its other end to the rail of the sash. The principle of my invention consists in so arranging the levers C C that the part of the frame B above the foot F of the lever C shall always form, with the part of the lever G which is between the pivot D and the windowframe B, an angle somewhat smaller than a right angle. It will then be seen that any attempt to lower the sash A without removing the pressure of the foot F will press the roughnesses or the rubber upon the outer surface of F .more firmly against the frame B, thus holding the sash from falling whatever the elevation at which it may be placed. Hence I do not confine myself to any particular shape of the levers U C, as the same may be straight or curved, as may be most convenient, taking into account the depth of the rail on which they are placed. The two levers C C, workin g against each other, will overcome the lateral play of the sash A when the latter is not perfectly fitted to its frame. To raiseor lower the windowsash A, place the thumb upon the handlel, and with the fore-finger lift the slide G by means ofthe stud J, and'thereby raise the inner ends of the levers C C, which will turn said levers upon their respective pivots D D and draw the `feet F F out of contact with the window-frame and allow the sash to be raised or lowered. On removing the tin ger from the stud J the spring L will throw down the slide G andthe inner arms of the levers C C, rais ing the feet F F against the frame B land stopping the sash A from falling. The sash A may also be raised by simply lifting it by the stud J or the handle I, the feet F F opposing' but` very slight resistance to the upward motion of the sash. By pivoting the' levers O U at such points that the weight of the inner arms of said levers more than counterbalances that of the outer arms of the same a spring may be dispensed with, the weight of the inner arms and of the slide G causing said inner arms to fall as it' thrown or drawn down by a spring. The window-sash may then be raised as before and lowered by lifting the stud J very slightly and lowering the hand, when the sash will fol- ]ow the hand down. Let the drawing (Fig. 1) be turned so that the Window-frame A appears to be lying on its side, and it will be seen that (employing the spring L) my invention may be used to stop a window which slides horizontally.

1t is evident that my invention may be applied to sliding doors, shutters, and blinds as Well as to sliding windows, and that whether the same slide vertically or horizontally; also, .that by using` my stop at each end'ot' a door of said levers, respectively, by the outer arms' of said levers and the sides of the windowframe B where said levers touch said frame B, are somewhat smaller than right angles, as and for the purpose herein set forth.

. ALFRED H. CHASE.

Witnesses:

ALBERT M. MOORE, JAMES M. MOORE. 

